Sn 63 Pb 37 Usage: Proportion of alloys that most commonly used in printed circuit board assembly applications
Sn 60 Pb 40 Usage: Usually applied in single-sided board soldering and soldering operations
Sn 55 Pb 45 Usage: Not often used, except for high temperature soldering operation
Sn 50 Pb 50 Usage: Used in pcb welding of difficult-to-weld metals such as iron and steel.
Sn 40 Pb 60 Use: For high temperature applications, for the welding of automotive industry coolers
Sn30Pb70 usage: used to repair car dents
No.123 Usage: Low tin slag alloy for high temperature tinning line operation
Sn20Pb80 usage: Not often used, except in the automotive industry
Sn10Pb90 usage: BGA package in PCB manufacturing and CGA ball
Sn05Pb95 usage: high temperature alloy, rarely used
Sn96.5Ag3.5 usage: high temperature alloy, the formed solder joint has high strength
Sn96Ag04 usage: will be used when high-strength solder joints are required
Sn95Ag5 use: it will be used when high-strength solder joints are required
100%Sn use: added to the tin furnace to supplement the loss of tin
Sn95Sb05 use: high temperature solder usage
SAF-A-LLOY use: alloy developed for lead-free processes
Sn60Pb36Ag02 Usage: For the welding of silver-board ceramic circuit boards or silver and palladium conductors
Sn10Pb88Ag04 Usage: Used for welding silver plated ceramic board or silver and palladium conductors to avoid the loss of silver
Sn10Pb88Ag02 Usage: For products in high temperature working environment
Sn05Pb93.5Ag1.5 Use: For products in high temperature working environment
Sn05Pb92.5Ag2.5 usage: the eutectic temperature in the solder alloy and the highest
Sn43Pb43Bi14 use: low temperature solder alloy
① Prepare a actual product surface soldered pcb assembly board . Because printed solder paste and the PCB assembly board without soldering cannot fix the test end of the thermocouple, it is necessary to use the soldered actual product for testing. In addition, the test sample cannot be used repea...
Most military industrial enterprises in China use epoxy insulation varnish as a three-anticoating material, using traditional immersion, brushing and spraying processes. Because the output of military products is relatively small, many companies use manual operations. The main disadvantage of man...
Pcb prototypes samples need to be aged prior to solderability testing. Because the solderable surface of the component or PCB circuit board that has just been produced is generally not problematic, it will deteriorate due to oxidation after being stored for a period of time. The test must conside...